"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.
I think the market has just written off the first-half of the year, we're just waiting for the dust to settle with the strong dollar and the oil prices and nobody really knows what the effects will be.
The thing is, I have a zillion apps, and I'm always looking for the perfect arrangement for them, so scrambling my home screen is part of that eternal quest.